07-05-2015
Hi Smiling Dragon, cfajohnson, Scrutinizer, & Aia,
If you look closely at the 1st post in this thread, you'll notice that the request is to find timestamps in unspecified fields in a CSV formatted file where the input timestamps are in the format MM/DD/YYYY HH:MM:SS and the output timestamps are supposed to be one month later in the format DD/Mon/YYYY HH:MM:SS.
So, there is no reason to believe that using / as a field separator on an input line will yield only three fields, that the first field will just contain a month number, nor that the third field will only contain a year and a timestamp. None of the code suggested so far makes any attempt to adjust the output month, to adjust the day field if the output month has fewer days than the input month, nor to adjust the year if the input month is 12.
Three days ago (less than an hour after the original post), I asked the submitter to provide us with more details and to show us what had been tried to solve this problem. I figured that the code that would be shown to us would clarify if the conversion from month number 06 to abbreviated month name Jul was intentional or a typo, would clarify if the field separator in the CSV file format was a comma or some other character, and would clarify whether every input field needed to be processed or if only certain fields need to be processed. Unfortunately, I am still waiting for a response.
This User Gave Thanks to Don Cragun For This Post:
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LEARN ABOUT HPUX
calendar
calendar(1) General Commands Manual calendar(1)
NAME
calendar - reminder service
SYNOPSIS
DESCRIPTION
consults the file in the current directory and prints out lines containing today's or tomorrow's date anywhere in the line. On weekends,
``tomorrow'' extends through Monday.
When a command-line argument is present, searches for the file in each user's home directory, and sends any positive results to the user by
(see mail(1)). Normally this is done daily in the early morning hours under the control of (see cron(1M)). When invoked by reads the
first line in the file to determine the user's environment.
Language-dependent information such as spelling and date format (described below) are determined by the user-specified statement in the
file. This statement should be of the form where language is a valid language name (see lang(5)). If this line is not in the file, the
action described in the section is taken.
is concerned with two fields: month and day. A month field can be expressed in three different formats: a string representing the name of
the month (either fully spelled out or abbreviated), a numeric month, or an asterisk (representing any month). If the month is expressed
as a string representing the name of the month, the first character can be either upper-case or lower-case; other characters must be lower-
case. The spelling of a month name should match the string returned by calling (see nl_langinfo(3C)). The day field is a numeric value
for the day of the month.
Month-Day Formats
If the month field is a string, it can be followed by zero or more blanks. If the month field is numeric, it must be followed by either a
slash or a hyphen If the month field is an asterisk it must be followed by a slash The day field can be followed immediately by a blank or
non-digit character.
Day-Month Formats
The day field is expressed as a numeral. What follows the day field is determined by the format of the month. If the month field is a
string, the day field must be followed by zero or one dot followed by zero or more blanks. If the month field is a numeral, the day field
must be followed by either a slash or a hyphen If the month field is an asterisk, the day field must be followed by a slash
EXTERNAL INFLUENCES
Environment Variables
determines the format and contents of date and time strings when no statement is specified in the file.
determines the language in which messages are displayed.
If is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty vari-
able. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of If any internationalization
variable contains an invalid setting, behaves as if all internationalization variables are set to "C". See environ(5).
International Code Set Support
Single- and multi-byte character code sets are supported.
EXAMPLES
The following file illustrates several formats recognized by calendar:
In the following file, dates are expressed according to European English usage:
WARNINGS
To get reminder service, either your calendar must be public information or you must run from your personal file, independent of any run
systemwide. Note that if you run yourself, the calendar file need not reside in your home directory.
extended idea of ``tomorrow'' does not account for holidays.
This command is likely to be withdrawn from X/Open standards. Applications using this command might not be portable to other vendors'
platforms.
AUTHOR
was developed by AT&T and HP.
FILES
to figure out today's and tomorrow's dates
SEE ALSO
cron(1M), nl_langinfo(3C), mail(1), environ(5).
STANDARDS CONFORMANCE
calendar(1)